CN214429245U - Intelligent middle-low voltage switch cabinet - Google Patents

Intelligent middle-low voltage switch cabinet Download PDF

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Publication number
CN214429245U
CN214429245U CN202023218595.8U CN202023218595U CN214429245U CN 214429245 U CN214429245 U CN 214429245U CN 202023218595 U CN202023218595 U CN 202023218595U CN 214429245 U CN214429245 U CN 214429245U
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China
Prior art keywords
cpu
low voltage
switch cabinet
circuit
chamber
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Application number
CN202023218595.8U
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Chinese (zh)
Inventor
王潜
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Anshan Junlong Automation Control System Co ltd
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Anshan Junlong Automation Control System Co ltd
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Priority to CN202023218595.8U priority Critical patent/CN214429245U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Distribution Board (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The utility model provides a low voltage switch cabinet in intelligence has add the arc light acquisition sensor of switch room, cable chamber, generating line room to having add the temperature acquisition point, having added overcurrent protection circuit and two CPU configurations, can also going on carrying out overcurrent protection to the CPU board under realizing observing and controlling, protection, tripping operation early warning etc. functions, two CPU configurations can protect the uninterrupted power supply of switch cabinet, prevent that the CPU trouble outage from restarting the load equipment and stopping and the huge loss that brings.

Description

Intelligent middle-low voltage switch cabinet
Technical Field
The utility model relates to a medium voltage switchgear.
Background
The medium-low voltage switch cabinet is an important device of a power transmission and distribution system, and the safety protection of the device is particularly important in the operation of the device. Therefore, in order to ensure the stable operation of the switch cabinet, it is necessary to monitor various parameters in the cabinet in real time. If more monitored parameter sampling points are available, the judgment of the comprehensive protection is more accurate and reliable. In a traditional medium-voltage switch cabinet, a control device or a comprehensive protection device for controlling and protecting the switch cabinet is of a single-CPU structure, and a plurality of temperature detection functions are added in a novel switch cabinet, so that a plurality of temperature detection interfaces and temperature monitoring functions are required to be added to an original CPU, and a chip communicated with the original CPU is required to be added in order to take the wireless communication remote transmission function into consideration; it is also necessary to provide dual CPUs. The overcurrent protection circuit and the double-CPU configuration are added, overcurrent protection can be carried out on the CPU board under the conditions that the functions of measurement and control, protection, tripping early warning and the like are realized, uninterrupted power supply of the switch cabinet can be protected through the double-CPU configuration, and huge loss caused by the fact that the load equipment stops when the CPU is in fault outage and restarted is prevented.
Disclosure of Invention
The utility model provides a low voltage switch cabinet in intelligence has add the arc light acquisition sensor of switch room, cable chamber, generating line room to having add the temperature acquisition point, having added overcurrent protection circuit and two CPU configurations, can also going on carrying out overcurrent protection to the CPU board under realizing observing and controlling, protection, tripping operation early warning etc. functions, two CPU configurations can protect the uninterrupted power supply of switch cabinet, prevent that the CPU trouble outage from restarting the load equipment and stopping and the huge loss that brings.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
an intelligent medium and low voltage switch cabinet is characterized in that a bus chamber, a switch chamber, a cable chamber and a control chamber are arranged in a cabinet body, and a comprehensive protection device is arranged in the control chamber at the upper part of the cabinet body; the temperature and humidity sensor, the bus chamber temperature sensor and the breaker contact temperature sensor are also respectively connected with a CPU processor circuit, and the CPU processor circuit is connected with the vacuum breaker.
The CPU processor circuit is also connected with a memory circuit.
The CPU processor circuit is also connected with an alarm circuit.
The CPU processor circuit is also connected with a wireless communication unit to realize communication with an upper computer.
The CPU processor circuit is set by double CPUs and is provided with an overcurrent protection circuit, and the overcurrent protection circuit is connected with the CPU processor.
Compared with the prior art, the beneficial effects of the utility model are that:
1) arc sensors are arranged in the bus chamber, the switch chamber and the cable chamber, and signals of the arc sensors, the current sensor and the voltage sensor are simultaneously used as input data of a CPU (central processing unit), so that the accuracy and the safety and the reliability of the comprehensive protection device are enhanced.
2) A plurality of temperature acquisition points are arranged, so that temperature acquisition data are more accurate, and the accuracy of circuit operation of the CPU processor is improved.
3) The storage circuit is arranged, so that various parameter data of the medium-low voltage switch cabinet can be effectively stored, and data calling and inquiring are facilitated.
4) The alarm circuit is arranged, and when the system is abnormal, the alarm function is realized.
5) The double-CPU configuration is added with an overcurrent protection circuit, overcurrent protection can be carried out on the CPU board under the conditions of realizing the functions of measurement and control, protection, trip early warning and the like, the uninterrupted power supply of the switch cabinet can be protected by the double-CPU configuration, and huge loss caused by the fact that the load equipment stops after the CPU is in fault outage and restart is prevented.
Drawings
Fig. 1 is a structural diagram of a cabinet body of an intelligent medium and low voltage switch cabinet.
Fig. 2 is a control structure diagram of the intelligent medium and low voltage switch cabinet.
Fig. 3 is a circuit schematic of the CPU processing circuit.
Fig. 4 is a schematic diagram of an alarm circuit.
Fig. 5 is a schematic circuit diagram of a wireless communication module.
In the figure: 1-comprehensive protection device 2-switch circuit breaker 3-in-cabinet environment temperature and humidity sensor 4-bus chamber temperature measurement sensor 5-circuit breaker contact temperature measurement sensor 6-cable chamber
Detailed Description
The technical content of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1-2, an intelligent medium and low voltage switch cabinet is provided with a bus chamber, a switch chamber, a cable chamber and a control chamber in a cabinet body, wherein a comprehensive protection device 1 is arranged in the control chamber at the upper part of the cabinet body. A temperature and humidity sensor 3 for monitoring the environment in the cabinet is arranged on the side wall of the upper part of the cabinet body, a temperature measuring sensor 4 is arranged on the side wall of the cabinet body in the bus chamber, a breaker contact temperature measuring sensor 5 is arranged in the switch chamber, arc light sensors are respectively arranged in the bus chamber, the switch chamber and the cable chamber, and the bus chamber, the switch chamber and the cable chamber arc light sensors are respectively connected with a CPU processor circuit of the comprehensive protection device through parameter sampling circuits; the temperature and humidity sensor, the bus chamber temperature sensor and the breaker contact temperature sensor are also respectively connected with a CPU processor circuit, and the CPU processor circuit is connected with the vacuum breaker.
The CPU processor circuit is also connected with a memory circuit, and the CPU processor circuit is also connected with an alarm circuit. The CPU processor circuit is also connected with a wireless communication unit to realize communication with an upper computer. The CPU processor circuits are in redundant arrangement and are mutually standby.
The working process of the device is as follows: the current transformer, the voltage transformer, the switch chamber arc light sensor, the cable device arc light sensor, the bus chamber arc light sensor, the breaker contact temperature measuring sensor, the bus temperature measuring sensor and the temperature and humidity sensor in the cabinet respectively collect signals of the cabinet body in real time, and the collected signals are input into the CPU processing circuit and are analyzed and processed by the CPU processing circuit. The device also has the functions of information storage and alarm, and is provided with a wireless communication unit, so that remote communication can be realized.
The double-CPU configuration is added with an overcurrent protection circuit, overcurrent protection can be carried out on the CPU board under the conditions of realizing the functions of measurement and control, protection, trip early warning and the like, the uninterrupted power supply of the switch cabinet can be protected by the double-CPU configuration, and huge loss caused by the fact that the load equipment stops after the CPU is in fault outage and restart is prevented.

Claims (5)

1. An intelligent medium and low voltage switch cabinet is characterized in that a bus chamber, a switch chamber, a cable chamber and a control chamber are arranged in a cabinet body, and a comprehensive protection device is arranged in the control chamber at the upper part of the cabinet body; the temperature and humidity sensor, the bus chamber temperature sensor and the breaker contact temperature sensor are also respectively connected with a CPU processor circuit, and the CPU processor circuit is connected with the vacuum breaker.
2. An intelligent medium and low voltage switchgear as claimed in claim 1, wherein said CPU processor circuit is further connected to a memory circuit.
3. The intelligent medium and low voltage switch cabinet according to claim 1, wherein the CPU processor circuit is further connected with an alarm circuit.
4. The intelligent medium and low voltage switch cabinet according to claim 1, wherein the CPU processor circuit is further connected with a wireless communication unit to communicate with an upper computer.
5. An intelligent medium and low voltage switchgear as claimed in claim 1, wherein said CPU processor circuit is a dual CPU arrangement, the dual CPUs communicate with each other and are connected to an overcurrent protection circuit.
CN202023218595.8U 2020-12-28 2020-12-28 Intelligent middle-low voltage switch cabinet Active CN214429245U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023218595.8U CN214429245U (en) 2020-12-28 2020-12-28 Intelligent middle-low voltage switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023218595.8U CN214429245U (en) 2020-12-28 2020-12-28 Intelligent middle-low voltage switch cabinet

Publications (1)

Publication Number Publication Date
CN214429245U true CN214429245U (en) 2021-10-19

Family

ID=78053446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023218595.8U Active CN214429245U (en) 2020-12-28 2020-12-28 Intelligent middle-low voltage switch cabinet

Country Status (1)

Country Link
CN (1) CN214429245U (en)

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